[Hardware] Скорость hdd

[Alexei V. Mezin]

Andrey Rahmatullin wrote:
> On Tue, May 03, 2005 at 10:59:26PM +0400, Alexei V. Mezin wrote:
> 
>>    ide2: BM-DMA at 0xb800-0xb807, BIOS settings: hde:pio, hdf:pio
>>    ide3: BM-DMA at 0xb808-0xb80f, BIOS settings: hdg:pio, hdh:pio
> 
> Написано ж - pio.
> hdparm -d1 /dev/hde
> 
Эффект не проявился:
[root на threebears root]# hdparm -d1 /dev/hde

/dev/hde:
  setting using_dma to 1 (on)
  using_dma    =  1 (on)
[root на threebears root]# hdparm -i /dev/hde

/dev/hde:

  Model=ST3200822A, FwRev=3.01, SerialNo=4LJ0DXVD
  Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
  RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
  BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
  CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
  IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
  PIO modes:  pio0 pio1 pio2 pio3 pio4
  DMA modes:  mdma0 mdma1 mdma2
  UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
  AdvancedPM=no WriteCache=enabled
  Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:

  * signifies the current active mode

[root на threebears root]# hdparm -t /dev/hde

/dev/hde:
  Timing buffered disk reads:   62 MB in  3.04 seconds =  20.38 MB/sec


Кстати,  *udma5 всегда было но обоих винтах. Так что вроде не PIO.